Write the following proportion.11 is to 6 as 44 is to 26

A.  =  
B.  =  
C.  = 
D.  =  


Answer: D

Mathematics

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Find the equation of the conic with the given characteristics.An ellipse with foci at (-5, 3) and (1, 3); major axis length of 10

A.  +  = 1
B.  +  = 1
C.  +  = 1
D.  +  = 1

Mathematics

Find the vertex, the focus, and the directrix of the parabola.y = -2x2 - 20x - 52 = 0

A. V: ; F: ; D: x = - 
B. V: ; F: (-5, -4); D: x = 0
C. V: (-5, -2); F: ; D: y = - 
D. V: ; F: (-5, -10); D: x = -6

Mathematics

Solve the problem.The table lists numbers of bachelor's degrees awarded by a midwestern college in selected years. Determine  so that f models these data. 

A. f(x) = 2(x - 2002)2 + 468 B. f(x) = 1.8(x - 2002)2 + 468 C. f(x) = 1.8(x - 1992)2 + 648 D. f(x) = 2(x - 1992)2 + 648

Mathematics

Find the center-radius form of the equation of the circle.center (-8, -7), radius 

A. (x + 8)2 + (y + 7)2 = 3 B. (x - 7)2 + (y - 8)2 = 9 C. (x + 7)2 + (y + 8)2 = 9 D. (x - 8)2 + (y - 7)2 = 3

Mathematics